Romans 4:19
And he fainted not in the faith, nor yet considered his own body, which was now dead, even when he was almost a hundred years old: neither yet that Sara was past childbearing.
Genesis 17:17
And Abraham fell upon his face and laughed, and said in his heart, "Shall a child be born unto him that is a hundred years old? And shall Sara, that is ninety years old, bear?"
Genesis 18:11-14
Abraham and Sara were both old and well stricken in age, and it ceased to be with Sara after the manner as it is with wives.
Matthew 6:30
Wherefore, if God so clothe the grass, which is today in the field, and tomorrow shall be cast into the furnace, shall he not much more do the same unto you, O ye of little faith?
Matthew 8:26
And he said unto them, "Why are ye fearful, O ye of little faith?" Then he arose, and rebuked the winds and the sea; and there followed a great calm.
Matthew 14:31
And immediately Jesus stretched forth his hand, and caught him, and said to him, "O thou of little faith: wherefore didst thou doubt?"
Mark 9:23-24
And Jesus said unto him, "Yea if thou couldest believe, all things are possible to him that believeth."
John 20:27-28
After that said he to Thomas, "Bring thy finger hither and see my hands, and bring thy hand and thrust it into my side, and be not faithless, but believing."
Romans 4:20-21
He staggered not at the promise of God through unbelief: But was made strong in the faith, and gave honour to God,
Romans 14:21
It is good neither to eat flesh, neither to drink wine, neither anything, whereby thy brother stumbleth, either falleth, or is made weak.
Hebrews 11:11-19
Through faith Sarah also received strength to be with child, and was delivered of a child when she was past age, because she judged him faithful which had promised.